MountainUni now has an experimental disk brake setup, and we are seeking a few select individuals whom are willing to give us feedback regarding performance and market viability. Your quality feedback will determine who we’ll select for this test market. This is not an inexpensive venture, but we do feel that this concept will advance the technology of our sport, and feel this forum community could provide key insight!
The process involves having a disk brake mount welded to the frame, and is unique because the rotor attaches to 5 bolt, 110 BCD cranks. Attached is pictures of a protoype (pat. pend.) & its application on a 29er Mountainuni. This type of disk brake system gives consistent and predictable stopping in all environments, and is virtually unaffected by water and mud, unlike the Magura. Our choice of Sins cranks is relevant because of the strength, wide range in sizes from 115-180mm square taper & 135-180mm ISIS lengths at an affordable cost. Yes I said Square Taper too! The development team has a prototype built on my square taper Nimbus 36er and it’s an amazing improvement in braking! We’re also exploring options for dual hole cranks for production peices as well. Again, feedback will help determine what option will be made available for production pieces.
The disk brake mount itself is STEEL and work with fork type steel frames. Aluminum Mounts are in process now, but have not completed proof of concept on Nimbus Nightrider, KH, Hunter, or Coker V2 frames. Pending your own person welding skills, or your connections, welding costs may run as much as $50.00 at a reputable shop. Any Shimano or Grimeca dual piston caplier will work, but we’re happy to guide you on what to buy if your going new. We have both 29ers & 36ers current built with this set up and it is by far, the best consistent braking system to date for Uni’s, and eliminates all “frame-flex” issues associated with bigger wheel braking.
Allow several weeks for us to produce and ship this unique system, as we have a limited quantity. If anyone is interested please inquire through PM or this thread and we’re happy to provide further information. We are not set up for e-commerce yet, but that is coming soon. Please save The “how much” feedback for future discussions, as we’re not ready to take orders. I can tell you we will be less expensive than your “only hydraulic option” today. We will also send setup instructions and pictures for the welder.
Thanks for reading and I hope you like what you see!
Jeff // Mountainuni